The Tecumseh 778142 is a genuine OEM governor gear designed for various Tecumseh small engines. This critical component helps regulate engine speed, ensuring optimal performance and stability. It is compatible with a wide range of Tecumseh H, HS, HH, VM, VLV, TVM, and TVXL series engines, including models such as H30, H35, H40, H50, H60, H70, HS40, HS50, HS60, HS70, HH40, HH50, HH60, HH70, VM70, VM80, VLV50, VLV55, VLV60, VLV66, VLV126, TVM125, TVM140, TVXL170, TVXL195, and TVXL220. Please note that this original Tecumseh part is officially discontinued and no longer available from the manufacturer.